Four reactant free gold nanoparticle size preparations between 20-80nm, 20ml of each size. Ideal for conjugation of antibodies for use in lateral flow and blotting applications. Purity: >99.0% reactant free

Ten gold nanoparticle size preparations between 5-200nm, 20ml of each size. Broad range of particles sizes suitable for adsorption of thiolated ligands such as oligonucleotides and polyethylene glycols.